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/həˈraɪ.zən laɪn/

Horizon line

noun · linear perspective

In linear perspective, the horizontal line on the picture plane that represents the viewer's eye level. Every vanishing point of horizontal receding lines sits on the horizon line. Outdoors and unobstructed, it coincides with the visual horizon where land or sea meets sky.

What it is

The horizon line is the most consequential single placement a perspective drawing makes. Move it up — the viewer is looking down on the scene from above; move it down — the viewer is looking up; centre it — the viewer is at the subject's own eye level. Children's-book illustrators commonly drop the horizon below the bottom edge to make adult-scale rooms feel tall to a child viewer; classical portraitists raise it slightly above eye level to give subjects subtle authority.

The horizon does not always show on the page. In an interior scene with no view to a window, the horizon is still placed by the artist — it determines where every wall, table, and chair edge converges, even though the line itself is hidden behind the walls. The Loomis figure-drawing manual teaches that the figure's eye level is the horizon for any same-height observer, which is why standing figures in a crowd scene appear to have their eyes all on the same line regardless of distance.

A horizon line with two vanishing points and three figures whose eye levels all align on itHL
Three figures at the same physical height. Each one's eye sits on the horizon line, regardless of distance from the viewer.

Etymology

From Greek ὁρίζων (horizōn) — "the bounding circle," from ὁρίζειν, "to divide" — referring originally to the apparent boundary between earth and sky. The technical artistic sense — a constructed line representing the viewer's eye level whether or not the geometric horizon is visible — entered English usage with the perspective treatises of the 17th and 18th centuries, codified in Brook Taylor's Linear Perspective (1715) as "the vanishing line of the horizontal plane."

Examples in use

In Vermeer's Officer and Laughing Girl (c. 1657, Frick Collection, accession 1911.1.127), the horizon line falls just below the laughing girl's chin — placing the viewer at a seated companion's height and producing the painting's signature intimacy. Compare Vermeer's The Astronomer (1668, Louvre, INV 1983-28), where the same artist raises the horizon to the astronomer's brow to give the figure quiet command of the room.

In film-making, the equivalent control is camera height. Yasujirō Ozu's tatami-mat shooting style — described in detail in David Bordwell's Ozu and the Poetics of Cinema (Princeton, 1988) — places the camera at the eye level of a person kneeling on the floor, which sets the horizon line consistently low and produces Ozu's distinctive treatment of domestic interiors.

See also: Vanishing point · Foreshortening · Atmospheric perspective · Perspective category · Perspective grid tool

References

  1. Taylor, Brook. Linear Perspective: Or, a New Method of Representing Justly All Manner of Objects as They Appear to the Eye. R. Knaplock, London (1715).
  2. Loomis, Andrew. Successful Drawing. Viking Press (1951). Reissued by Titan Books (2012), ISBN 978-0-85768-697-9.
  3. Kemp, Martin. The Science of Art: Optical Themes in Western Art from Brunelleschi to Seurat. Yale University Press (1990). ISBN 0-300-04337-2.
  4. Bordwell, David. Ozu and the Poetics of Cinema. Princeton University Press (1988). ISBN 0-691-00993-5.

Sarah Chen

Founder of Grid Maker Pro. Classical portrait painter (BA Fine Arts). Writes about composition, drawing methods, and the art-history claims that don't survive measurement.

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